<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
		<style>
		div{
			width: 200px;
			height: 200px;
			border-top: 1px solid red;
			border-bottom: 2px dashed    green;
			border-left: 3px dotted yellow;
			border-right: 4px double blue;
			border-radius: 180px;
			margin-bottom: 50px;
			box-shadow: 6px 6px 2px gainsboro;
		}
		[type="text"]{
			/* border-radius: 6px; */
			
			/* outline: none; */
			border: 1px solid black;
			padding-left: 50px;
		}
		</style>
	</head>
	<body>
		<div></div>
		<div style="background-color: #FF0000;"></div>
	用户名：	<input type="text" />
	</body>
</html>
